UC560 has CO line apperances on Buttons.
Ho can you setup such that you can barge in and join the call when the light is lit red?
below is support information:
voice-port 0/1/0
connection plar opx 3A10
description Configured by CCA CO Line - 0/1/0-CO0
caller-id enable
ephone-dn 295 dual-line
number 3A10 no-reg primary
label CO Line 1
description CO Line 1
name Line 1
trunk A0 monitor-port 0/1/0
